Sterilizer



FIG. 1 is a front, top, and left side perspective view of a sterilizer;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image of the left side elevational view shown; and,

FIG. 5 is a front elevational view thereof; the rear elevational view being a mirror image of the front elevational view shown.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a sterilizer, as shown and described. 